My mate and I are opiate addicts, they've never effected my sex drive too much but I would venture to say that it's the worst drug to have sex on because of how it effects /him/. I notice no difference within myself but even though he has no problem getting a hard on, cumming is damn near impossible. When we're not doing heroin he lasts >5 minutes, when we are it's more like 2 hours. I get bored and sore and hopeless and ugh...I'd prefer the 5 minutes. Anyways, there's a way around this. Prostate gland. Works about 75% of the time after >10 minutes. It's saved my poor puss from relentless opiate induced poundings. Although, whats funny is, we do heroin now but before we did Opana...the problem then wasn't taking 2 hours, it was trying to stay awake for the 5 minutes it took to cum. I remember waking up very startled to him on top of me, asleep, with his cock in me, and a finger in my ass. But it was nice. Far nicer than an orgasm. So I just snuggled up and went back to sleep. Too bad we can't nod like that anymore. :/